Incandescent vapor-burner.



No. 782,962. PATENTED FEB. 21, 1905.

J. HENDY & H. J. S. STOBART.

INOANDESOENT VAPOR BURNER. APPLIGATIgg FILED JAN. 6, 1904.

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PAT ENTED FEB. 21, 1905. J. HBNDY & H. J. S. STOBART. INGANDESGENT VAPORBURNER.

APPLICATION FILED JAN. 6, 1904.

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UNITED STATES Patented February 21, 1905.

PATENT OFFICE.

JOHN HENDY AND HENRY JOHN SCOTT STOBART, OF LIGHTHOUSE WORKS, NEARBIRMINGHAM, ENGLAND.

INQANDESCENT VAPOR-BURNER.

SPECIFICATION forming part of Letters Patent No. 782,962, dated February21, 1905.

Application filed January 6, 1904. Serial No. 187,896.

To (LIZ whom it may concern.-

Be it known that we, JOHN HENDY and HENRY JOHN Soor'r STOBART, subjectsof the King of Great Britain and Ireland. and residents of LighthouseW'orks, near the city of Birmingham, England, have invented certain newand useful Improvements Relating to Incandescent Vapor-Burners,(forwhich We have filed an application in Great Britain, No. 3,421, bearingdate February 13, 1903,) of which the following is a specification.

This invention has for its object the construction of incandescentvapor-burners for various purposes, but particularly incandes- 5 centpetroleum-vapor burners adapted for lighthouse service.

Referring to the four accompanying sheets of explanatory drawings,Figure 1 is an ele-' through each in turn is detachably fixed with-- inthe chamber formed by the cylindrical or other base part, as- Z), of theburner. The said vaporizer is heated by a subsidiary burner 0, suppliedwith gaseous mixture from the mixing and superheating chamber (Z, to behereinafter referred to.

Before its admission to the vaporizer-inlet connection 0 the oil iscaused to pass through a short length of tube f, considerably larger indiameter than the supply-tube from the pressure-tank or other source. Byemploying such an enlarged tube we obviate the difliculties usuallyexperienced from deposits in the vaporizer. The said tube f is fittedwith a valve, as shown, to prevent pulsation of the light.

The vapor passes out from the vaporizer by way of a small orifice 5],above which, but separated by an air-space, is the mouth orinletaperture of the supply connection it of the combined mixing andvapor-heating chamber cZ, formed in the upper part of the cylindricalbase 6. The jet of oil-vapor projected into the said aperture inducesand carries along with it into the chamber (Z the required quantity ofatmospheric air.

The main or illuminating burner-tube has 0 its lower end, which projectswithin the chamber (Z, made to a conical form, and it is also providedwith a nozzle-like internal fitting j, forming the conduit or connectionbetween the burner and the said chamber. The upper end of the burner isfitted with gauze 71:. The mantle is arranged and supported above it inany convenient manner.

The subsidiary or vaporizer heating burner e is supplied with gaseous orVapor mixture through a by-passage or tube or conduit Z from the chamber(Z. The hot gaseous products of combustion from the said vaporizingheatingburner have no access to the chamber (Z, being discharged toatmosphere through lateral ap- 75 ertures, as m, in thevaporizing-chamber Z); but before passing out to atmosphere the said hotgases impinge upon the chamber (Z and its connections 1L and Z, and thussuperheat the gaseous mixture before it passes to the re- 8 spectiveburners.

The superheating and mixing chamber is sometimes formed by the upperpart of the cylindrical base or casing Z itself, a plate being fittedwithin the casing above the vaporizer to completely separate the upperand lower parts and prevent access of the waste gases from thevaporizer-burner c to the upper part or superheating-chamber.

In starting the apparatus the vaporizer a is 9 heated to the requiredtemperature by a removable spirit-lamp or otherwise.

\V e preferably surround the vaporizer bya heat retaining guard orshield, as 72, arranged in any ordinary manner.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is

In incandescent vapor-burners,a casing having at its upper part amixing-chamber surmounted by a main burner, said mixing-chamber beingclosed to the interior of the casing and in communication with theexterior of the casing, a vaporizer horizontally disposed in the lowerpart of the said casing, said vaporizer extending through the wall ofthe casing and carrying at its outer extremity a delivery-nozzle, anoil-supply tube connected with the vaporizer and having an enlargement

